It's close but it's just a call I think. You can somtimes have an ace with A9, A8 and suited aces of hearts. You can have some other 2 pairs as well. I'd be calling with this and maybe QT as well. I think that'd be enough combos

Not sure man. It depends on your turn strategy. Are you raising JT and 88 OTT? If not then yes you should have a raising range. If you are raising them on the turn then you'll over bluff if you try to bluff raise. It think optimal play would have you mostly calling with them on the turn

Actually, I forgot player pool adjustments. I'm not expert on 5nl players but my guess is they under bluff in these spots. Hence with that and the fact it's high rake at this stake, I think it becomes a fold

you have a clear fold here.

first of, there are no missed draw that would choose to bluff the river. the only reasonable draw was JT, and it got there on the turn. Maybe he could have something like KhTh but it is so unlikely that he float this hand OOP.

if villain has a made hand that you are ahead of, sayQT for instance, he would not bet the river. in fact, i cant see him turning any SDV hand into a bluff on this particular situation.

so to recap, no likely bluff range, no SDV hand that we beat... what you are left with here is hands that are value betting.

is there some chance you have th best hand here? yes maybe 5% or 10% of the time. problem is villain is potting the river.

so like a said, clear fold here.